Globe-valve.



0. A. LABUS.

GLOBE VALVE.

APPLICATmN man 11111.19. 1918.

11801 ,27 131119111011 Apr. 22, 1919.

WITNESSES Ns naar OTTO AUGUST LABUSr, OF GRAND RAPIDS,`i7l7IlSC(.)lll'SBllo GLOBE-verme.

Specification of Letters Patent.

ratentee npr.. es, raie.,

I Application led January 19, 1918. Serial No. 212,681.

To all whom t may concern:

Be it known that I, OT'ro A. LABUS, a citi-V Zen of the United States,residing at Grand Rapids, in the county of Wood and State of lVisconsin,have invented a new and useful Globe-Valve, of whichy the following is aspecication. y

This invention has reference to globe valves, and its object is toprovide Va valve particularly adapted for tightly closing against highpressures of either liquid, air

or gas. Q

In accordance with the invention, the valve member closing into thevalve seat in the globe valve is carried by a screw spindle or stem, insuch a manner that the stem, in turning about its axis, does not impartrota# tive movement to the valve member when it is seated. Moreover,there is provided a valve ring or gasket of some suitable soft nia--terial either metallic, fibrous, or of other nature, and a block oranvil between which and lthe body of the valve member the gasket issubjected to pressure in a manner to force it both against the valveseat and against the anvil or backing member, with the gasket completelyhoused in metal when the valve is in the closed position, andwith thegasket in the path of any possible leakage. y

The invention will be best understood from a consideration of thefollowing de` tailed description, taken inconnection with theaccompanying drawing forming part of I this specification, with thefurther understanding that, while the drawing shows a practical form ofthe invention, the latter 1s not confined to any strict conformity wlththe showing ofI the drawings but may be changed and modified so long assuchl changes and modifications come within the scope of the appendedclaims.

'In the drawing Figure 1 is a longitudinal central section of the valve,with some parts in elevation Fig. 2 is a section on the line 2 2 of Fig.1, omitting distant parts.

Fig.v 3 isa section on the line 3 3 of Figr` 1, omitting distant,parts.

Referring to the drawings, there is 'shown a valve body 0r casing 1,which may follow the usual lines of a globe valve. In the custernarydivision wall 2 between the inlet and outlet of the valve casing, thereis formed a valve seat 3 tapering in a direction away from a valve stem1 having screw threads 5 engaging. -in similar screw threads 1n abonlnet 6. The seat 3 hasV al continuation 3a at portion extending freefrom screw threads 5, and -is there provided with a circumferentialgroove 8, shown in Fig. 1 as an approximately' semi-circular grooveincross section. rlhe grooved end of the stem l1 is seated in a recess 9axially formed in a bonnet 10 constituting one portion of a valve membercomprising in addition to the bonnet 10 a ring 11 having at one end aiiange 12 screwed into a recess 13 in the adjacent face of the bonnet10. ln order to secure the stem 4 in the recess 9, the adjacent portionsof 4the bonnet 10 are traversed by pins 14E entering the groove 8 sothat the valve stem may be turned about ,its longitudinal axis withoutcausing the valve member carried thereby to turn with it.

The ring 11 is provided withan intermediately located diaphragm l5having a cenu tral passage 16 therethrough. Extending Sli through thepassage 16 is a stem 17 which cess 13. That end of the stem 17 remote yfrom the screw threaded portion '18 carries va block 20 having acylindrical portion 21 immediately adjacent to the stern 17, and fromthence e-Xpandlng as shown at 22 and then contracting as shown at23, sothat the main portion of the block 20' is reversely beveled. The angleof the bevel portion 23 corresponds to` the tapering portion of thevalve seat, wherefore the portion23, when lowered into the valve seat,will form a clo` sure therefor,

The edge of the ring 11 remote from the bonnet 10 is doubly beveledtoward the mid line thereof at a more obtuse angle than the taper of thevalve seat 3, and while not conned strictly to any particularangle, thei taper of the bevels may be about 30.

Surrounding the block 20 along the cylindrical portion 21 and taperportion 22 -is a packing ring or gasket 24, having at one edge a doublytapered seat 25 entered by the doubly tapered edge of the ring 11, whilethe other edge of the ring 24 is also doubly tapered as indicated at 26,with the angle of taper corresponding to that of the taper portion ofthe seat and of theV bevel of the part 22 of the block 20. The remainingwalls of the ring 24 are cylindrical, so as to engage the extensions 3f*of the valve Aseat and the'V cylindrical part 21 of the block 20.

When the parts are assembled, the block- 20 supports the ring 24 andholds it against the doubly beveled edge of the ring 11, and the nut 119is screwed upon the screw threaded portion 18 of the stem 17sufficiently to hold the ring 2-4 on the b-lock 20. A hole is then boredat a suitable point where the threads of the nut 19 and threadedextension 18 intermesh, and a pin 27 is inserted in the hole, so thatthe nut is thereby locked against unscrewing. rThe assembling of theblock 20 and gasket 24 in the ring 11 i's performed before the ring 11is screwed into the bonnet 10. By properly proportioning the'parts, thepin 27 need not be driven 'nto the hole provided for it so tightly as tointerfere with the removal of the pin when desired, since the clearancebetween the pin and the bonnet may be made smaller than the length ofthe pin, and its escape from the hole when the parts are so assembled isprevented.

rllhe block 20 is preferably a solid block, so that there are no jointsor assages th-roufgh the block through which fluld under high pressuremay find escape. The only path of fluid between the inlet and outletends of he valve casing, when the valve is close-d, is by way of thevalve seat and by the ring 24 where engaging the valve seat, and whereengagin the` block 20.

Onclosing the va ve, the-block 20 has its bevel end 23 brought intoengagement with .the small end portion of the taper valve seat, thusarresting any further movement ofthe block 20` into the seat. Continuedmovement, however, of the valve stem is participated in by the ring 11,and this serves to compress the ring or gasket 24 between the block 2()-andthe valve seat 3, the parts being so proportioned that the beveledend of the ring 11 enters the valve seat so that the gasket 24 is thenwholly inclosed in metal walls. The gasket 24 may be of a soft metalsuch as lead, or of some suitable fibrous material, or of rubber, or anyother material adapted to the purpose. The action of the Aring 11 uponthe packing ring or gasket 24 is to expand the ring against the valveseat and against the block 20, thusv effectively closing any avenue ofescape of fluid through the valve. rlhe closure is eiective even thoughlparticles of grit or the like nd lodglnent on the valve seat or on theblock 20, 'but the absence of any 'ledges or of the ring menare the likewhere the valve member seats reduces the liability of accumulations ofgrit to a minimum. Even should particles of grit lodge on the valveseat, the expansion or gasket 24 will embed the particles and preventleakage, taper form of the seating portion of the gasket and the opposedtapers of the valve seat and the block 20 where receiving the gasket allcontribute to a rm seating of the gasket, sage through the wall y2 witha minimum amount' of e'ort exerted 0n the valve stem in a; direction tocompress the gasket. No matter how great a pressure is exerted upon thegasket 24 in seating it, it is not subjected to distorting twists afterbeing brought to its seat and while being subjected to sealing pressure.Nor will there be any leakage. whether the pressure be exerted upon theclosed valve through either end -of the casing.

What is claimed 'is- 1. A valve provided with a valve seat, and acompression member for engaging the valve seat, said compression memberincluding a block for entering and engaging Athe valve seat, a gasketsurrounding the block and also arranged to enter and engage ing taperedoppositely to the first-named tapered 4portions of the gasket and blockand all the tapered portions being inthe direction of movement of theblock into the valve seat.

2. A valve structur rovided with a valve `seat having a cylindrlcalentering portion and'tapering therefrom to the other end, and

.a compression member including a cylindrical portions of a size toenter the cylindrical portion of the valve seat, a block or anvil havinga. vreversely tapered portion with one tapered part corresponding to thetaper of the valveseat to fit the latter at its smaller end, and apacking gasket between the other taper portion of the block and thecylindrical portion of the compression member, and of a circumferenceto' enter the cylindrical end of the valve seat, said gasket beingdoubly tapered tocorrespond to the second-named taper portion of theblock and .the taper portion of the valve seat.

3. A valve provided with a tapering valve seat having a substantiallycylindrical 4extension at its larger end and a valve-member for enteringthe valve seat, said valve member comprising two parts, one part beingin the form of a block carried by the other part land movable relativethereto and andan elfective sealing of the pas.

Moreover, the

' facilitate menare valve seat, and a compression part engag ing thegasket on the edge remote from the taper edge to spread the gasketagainst the 1 valve seat and against the block.

et. A valve provided with a tapering valve seat having a-substantiallycylindrical eX- tension at its larger end, and a valve member forentering the valve seat, said valve member comprising two parts, onepart- -being in the form of a `block carried by the other part andmovable relatively thereto and provided with a reversely tapered portionwith one taper adapted to it the taper portion of the valve seat, andthe other taper portion tapering away from the valve seat, a gaskethaving a doubly tapered end to tit between the second named taper of theblock and the taper of the valve seat, and of a size to also enter thecylindrical extension of the valve seat, and the compression memberengaging the gasket on the end remote from the taper lend to spread thegasket against the valve seat and against the block, said compressionmember having the edge engaging the gasket doubly beveled, and thegasket having a corresponding groove to the expansive action of thecompression meiirber on the gasket.

5. A valve having a valve seat of taper form with the entering endcylindrical,

and a valve member for entering the valve seat comprising a lbonnetportion, a ring portion carried by the bonnet portion and of a diameterto enter the cylindrical en d of thevalve seat, said ring portion havingthe edge remote from the bonnet portion doubly tapered and also providedwith an intermediate interior web having a passage therethrough, a blockprovided withfa stem extending through the/Web and screw threaded at theend for the reception of; a nut to hold the block to the ring, with theblock having a range of movement axially of the ring, said block havingthe end remote from the stein reversely tapered, with the taper at theend of the block adapted to fit the taper of the valve seat at itssmaller end, and the other taper being away from the taper portion ofthe valve seat,` and a gasket having one edge grooved to receive thetaper portion of the ring and the other edge doubly tapered t0correspond te the taper of the valve seat and the secondnamed taper ofthe block.

`6. A valve having a valve seat of taper form with the entering endcylindrical, and a valve member feed and swiveled to for entering thevalve Seat comprising a bonnet portion, a ring portion carried by thebonnet portion and of A a diameter to enter the cylindrical end of thevalve seat, said ring portion having the edge remote from the bonnetportion doubly tapered and also provided with an intermediate interiorweb having a passage therethrough, a block provided with a stemextending through tlie web and screw threaded at the end for thereception of a nut to hold the block to the ring, with the block havinga range of movement axially of the ring, said 'block having the endremote from the stem. reversely tapered, with the taper at the end ofthe block adapted to iit the taper of the valve seat at its smaller end,and the other taper being away from the taper portion of the valve seat,and a gasket having one edge grooved to receive 'the taper portion ofthe ring and the other edge doubly tapered to correspond to the taperoi`the valve seat and the second-named taper of the block, said valvestructure also being provided with a valve stem having a screw saidbonnet portion, whereby the valve stein may be turned after the valvemember is seated to expand the gasket without exerting twisting strainson said valve member. y

7. A valve structure provided with a tapering valve seat, and a closingmember for the valve seat comprising a backing device or anvil forenteringvand engaging the valve seat, a vgasket with walls doublytapered in the direction of the movement of the gasket into and out ofthe valve seat and engaging and supported by the anvil, and acompression device tor the gasket. movable against the latter toward theanvil to spread the taper walls ot the gasket in a direction transverseto the movement of the gasket and into engagement with the taper valveseat and the anvil to seal the valve against passage of liquid throughthe'valve seat.

8. A valve structure having a tapering valve seat and a closuretherefor, comprising a block adapted to enter thev valve seat, and agasket carried .by the block, said gasket being doubly tapered in thedirection of movement of the gasket into the valve seat, vand the blockwhere carrying the gasket being oppositely tapered with respect to thetaper of the Valve seat, and means for compressing the gasket againstthe block and valve seat, whereby the block rests on the .valve seat andthe gasket engages both the valve seat and block when the valve isclosed.

9. A valve structure provided with a tapering valve seat, an imperforateblock having a reversely tapered portion, with one part ofthe taperadapted t0 enter and enlill) gage the tapered valve seat and the *otherApered in the direction' of its movement into and out of the valve seatfor engaging the tapered portion of the latter and the secondnamedtapered part of the block, a bonnet having means for engaging andexpanding the gasket against the block and valve seat, a connectionbetween the block and the bonnet arranged interiorly of said bonnet, anda valve stem connected to the bonnet, the connection of the valve stemto the bonnet being independent of the connection of the block to thebonnet, whereby all paths of Lemma escape for Huid through the valvestructure are effectively sealed, when the valve is closed by the blockand gasket, Where the 15 block engages the valve seat and the gasketengages both the block and valve seat.

In testimony that I claim the foregoing as my own, 1 have hereto affixedmy signature in the presence of two witnesses.

OTTO AUGUST LABUS., Witnesses:

P. F. SWARTZ, W. F. SCHNEIDER.

